Finding the Fourth Proportional to 2,267.24, 3,128.76 and 1,272.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,267.24 : 3,128.76 = 1,272.50 : x
2. Step 2: Convert to fraction form
   2,267.24/3,128.76 = 1,272.50/x
3. Step 3: Cross multiply
   2,267.24x = 3,128.76 × 1,272.50
4. Step 4: Simplify right side
   2,267.24x = 3,981,347.10
5. Step 5: Solve for x
   x = 3,981,347.10/2,267.24
6. Step 6: Final answer
   x = 1,756.03